"We've been observing Nico for some time now and his performances have been very persuasive," she said. "That was the case in GP2 and has continued into Formula One.

"An obvious highlight was how he scored pole at Interlagos in 2010 despite the most challenging external conditions. He clearly showed that he can seize the chance if it arises.

"But high spots like that are one thing; systematic teamwork is another -- and on that score I have confidence in Nico too. I'm sure he will fit in very well with the Sauber F1 Team. We look forward to working together with him."

Sauber has enjoyed a solid 2012 campaign, sitting sixth in the constructors' standings one place above Force India with three races to go.

Hulkenberg's teammate next year has yet to be decided, with Sauber expected to release Japanese driver Kamui Kobayashi, while Force India have yet to announce who will line up alongside Paul di Resta.

Force India team principal Vijay Mallya expressed his gratitude for the work Hulkenberg has done at the UK-based marque.

"It has been a pleasure to have Nico with us for the last couple of years," he said.

"At the end of 2010 we identified him as a star of the future and it has been rewarding to watch him develop his racing skills.

"Together with Paul he has done a brilliant job for us, helping the team score more points than ever before and giving 100% commitment every weekend."